WO2019151621A1 - Method and apparatus for manufacturing brake pad for stabilization of quality - Google Patents

Abstract

The present invention relates to a method and an apparatus for manufacturing a brake pad for stabilizing the quality of the brake pad. More specifically, the present invention provides a method for manufacturing a brake pad and a manufacturing apparatus therefor, the method for manufacturing a brake pad in which a frictional material and a back plate are coupled comprises: a preliminary step of preparing a frictional material powder and the back plate; a forming step of forming the frictional material powder in the shape of the frictional material, and attaching the frictional material to one surface of the back plate; a quality stabilization step of heating and pressurizing the frictional material after the forming step is finished; a heat treatment step of heating the brake pad at a predetermined temperature after the quality stabilization step is finished; and a grinding step of grinding the frictional material.

Description

Brake pad manufacturing method and device for quality stabilization

The present invention relates to a method and apparatus for producing a brake pad. More specifically, the present invention relates to a brake pad manufacturing method and apparatus for quality stabilization aimed at stabilizing the quality of the brake pad.

Brake pads are used for braking devices in automobiles. Such a brake pad is generally composed of a friction material in frictional contact with the brake disc during braking and a back plate supporting the friction material.

The manufacturing process of the brake pad may include preparing a back plate and preparing a friction material powder for forming a friction material (preliminary step), preforming the friction material powder in the form of a friction material and attaching it to one surface of the back plate (molding process), Clamping the brake pad having the friction material attached to the back plate using a pressure jig (clamping process), heat treating the brake pad with the clamped state of the pressure jig (heat treatment step), and grinding the friction material after the heat treatment is completed. (Grinding step) is included.

In the past, the manufacturing process of brake pads was highly dependent on manual labor, but there have been efforts to introduce an automated process. For example, in connection with the molding process, Korean Patent Laid-Open Publication No. 10-2008-0021171 discloses a friction pad manufacturing method for a brake pad that manufactures a friction material cake used in a friction material used in a brake pad through an automated process. In addition, with respect to the grinding process, Korean Patent No. 10-0965613 discloses a brake pad grinding device for automating the grinding of the friction material provided in the brake pad.

In connection with the clamping process, Korean Patent Laid-Open No. 10-2012-0013702 discloses a brake pad pressurization apparatus using a pressurizing jig as an example of automating a process of aligning a plurality of brake pads to a pressurizing jig.

However, the brake pad pressurizing device disclosed in the Republic of Korea Patent Publication No. 10-2012-0013702 has a disadvantage that the device configuration is complicated. Accordingly, in the current brake pad manufacturing process, the clamping process is still dependent on the manual operation of the operator. In the manual clamping process, the pressure applied by the spring is not accurately controlled, or the pressure applied to the brake pad is not constant due to the skill of the operator, which causes quality defects. In addition, the process of aligning the plurality of brake pads to the pressing jig takes a lot of work time.

On the other hand, in the manufacturing process of the brake pad, the heat treatment process performed in the state in which the brake pad is clamped to the pressing jig usually takes 5 to 12 hours, and there was a problem of lowering productivity.

In the conventional brake pad manufacturing process, it has been taken for granted that the heat treatment step is carried out while the brake pad is clamped using a pressure jig.

On the other hand, the present invention provides a brake pad manufacturing method and apparatus that can reduce the time and labor required for the brake pad manufacturing process by eliminating the clamping process using the pressure jig, and can stably maintain the manufacturing quality of the manufactured brake pad. It aims to provide.

The present invention provides a method for manufacturing a brake pad in which a friction material and a back plate are combined, comprising: a preliminary step of preparing a friction material powder and the back plate; Molding the powder of friction material in the form of the friction material and attaching the friction material to one surface of the back plate; A quality stabilization process of heating and pressurizing the friction material after the molding process is completed; A heat treatment step of heating the brake pad at a predetermined temperature after the quality stabilization fixing is completed; And a grinding step of grinding the friction material.

In the present invention, after the molding process is completed, before the quality stabilization process is characterized in that the separate pressing treatment for the brake pad is not performed.

The quality stabilization process may be performed by heating the friction material to a temperature of 110 to 260 ° C.

In addition, the quality stabilization process may be performed in a state where the friction material temperature on the side close to the back plate is lower than the friction material temperature on the side far from the back plate.

Further, in the quality stabilization process, the back plate side of the brake pad may be heated to a temperature of 110 to 160 ℃ and the friction material end on the opposite side of the back plate may be heated to a temperature of 190 to 260 ℃.

In addition, the quality stabilization process may be performed while pressing the friction material to a pressure of 5 to 20% of the pressure applied to the friction material powder in the molding process.

On the other hand, the present invention is a device for manufacturing a brake pad combined with a friction material and a back plate, comprising: a molding apparatus for molding a friction material powder in the form of the friction material and attaching the molded friction material to the back plate; A quality stabilization device for heating and pressurizing the brake pads; And a heat treatment part for heating the brake pad to a predetermined temperature.

In one embodiment, the quality stabilization device, the upper stabilization mold, the lower stabilization mold and the intermediate stabilization mold positioned between the upper stabilization mold and the lower stabilization mold and accommodates the friction material of the brake pad in the upper and lower receiving spaces; Include.

Each of the upper stabilizing mold and the lower stabilizing mold includes a heating unit, and heats the friction material to a temperature of 110 to 260 ° C.

The upper stabilizing mold may heat the back plate to a temperature of 110 to 160 ° C., and the lower stabilizing mold may heat an end of the friction material to a temperature of 190 to 260 ° C.

The upper stabilizing mold and the lower stabilizing mold may move relative to each other in a state where the brake pad is positioned to press the friction material at 10 to 40 kgf / cm 2.

The brake pad manufacturing apparatus may further include a transfer robot configured to transfer and load the brake pad to the quality stabilization device, and to unload the brake pad from the quality stabilizer and transfer the brake pad to the heat treatment unit.

The present invention has the advantage of reducing the time and labor required for the brake pad manufacturing process by omitting the clamping process using the pressure jig, while maintaining a stable manufacturing quality of the manufactured brake pad.

In addition, the present invention can omit the conventional clamping process, there is an effect of shortening the heat treatment process time.

1 is an exploded perspective view illustrating the configuration of a brake pad by way of example.

2 is a perspective view exemplarily illustrating a configuration of a brake pad.

3 is a flowchart illustrating a brake pad manufacturing method according to a preferred embodiment of the present invention.

4 is a view illustrating a process of performing a molding process using a molding apparatus in a method of manufacturing a brake pad according to a preferred embodiment of the present invention.

5 is a diagram illustrating a process of performing a quality stabilization process using a quality stabilization apparatus in a method for manufacturing a brake pad according to an exemplary embodiment of the present invention.

6 is a view showing a schematic configuration of a brake pad manufacturing apparatus according to a preferred embodiment of the present invention.

7 is a view showing the quality characteristics of the brake pad according to the brake pad manufacturing method according to the present invention and the brake pad according to the conventional manufacturing method ((a) compression deformation, (b) hardness).

8 is a diagram showing the quality characteristics ((a) specific gravity, (b) shear strength) of the brake pad according to the brake pad manufacturing method according to the present invention and the conventional brake method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible, even if shown on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the following will describe a preferred embodiment of the present invention, but the technical idea of the present invention is not limited thereto and may be variously modified and modified by those skilled in the art.

1 is a perspective view exemplarily illustrating a configuration of a brake pad, and FIG. 2 is a perspective view exemplarily illustrating a configuration of a brake pad.

The brake pad 10 is composed of a cake forming friction material 12 which is press-molded with friction material powder and a back plate 14 made of steel. The outer surface of the backplate 14 may be provided with a projection 16 which is used to couple to the brake system of the vehicle. These protrusions 16 are usually arranged in pairs, one on each side, the position of which may vary depending on the configuration of the brake system of the vehicle. The brake pad 10 may be firmly attached to the back plate 14 by heating and pressing the friction material 12 using an adhesive material applied to the inner surface of the back plate 14.

In the brake manufacturing method according to the present invention, the friction material 12 is first molded in the form of a cake of friction material attached to the back plate 14, after the quality stabilization process, after the subsequent process such as grinding process Is completed.

3 is a flowchart illustrating a brake pad manufacturing method according to a preferred embodiment of the present invention. 4 is a view showing a process of performing a molding process using a molding apparatus in the brake pad manufacturing method according to a preferred embodiment of the present invention, Figure 5 is a brake pad manufacturing method according to a preferred embodiment of the present invention In the drawings illustrating a process of performing a quality stabilization process using a quality stabilization device.

In the method for manufacturing a brake pad according to the preferred embodiment of the present invention, the preliminary step (S100) of preparing the friction material powder and the back plate 14, the molding to form the friction material powder in the form of friction material to attach to one surface of the back plate 14 Process (S110), the quality stabilization process (S120) for stabilizing the quality of the friction material under heating and pressurized conditions, the heat treatment process for performing a heat treatment for the friction material through heating (S130), and to process the edge of the friction material or to form a groove Grinding process (S140) is included.

In the method for manufacturing a brake pad according to the present invention, a conventional clamping process of pressing the plurality of brake pads 10 using a pressing jig is omitted.

That is, in the related art, a plurality of brake pads 10 in which a molding process is completed are loaded into a pressing jig, and heat treatment is performed while the brake pads 10 are loaded in the pressing jig. However, in the present invention, after performing the quality stabilization process (S120), the brake pad is put into an oven for heat treatment to perform heat treatment. Accordingly, according to the present invention, it is easy to manufacture the brake pad, and there is an advantage of reducing the quality variation caused by manual labor.

The preliminary step S100 may include a friction material powder preparation step S102 and a backplate preparation step S104. The friction material powder preparation step S102 is a step of preparing a material mixture for forming the friction material 12. The back plate preparing step S104 may include preparing a back plate 14 formed of steel and applying an adhesive material to one surface of the back plate 14. The friction material powder may have various compositions depending on the characteristics of the vehicle in which the brake pad is used, the mounting position of the brake pad, and the like.

A molding process (S110) will be described with reference to FIGS. 3 and 4.

The molding process S110 includes a process of molding the friction material 12a using the friction material powder F and attaching the molded friction material 12a to one surface of the back plate 14. The friction material 12a is molded by weighing the friction material powder F into the molding apparatus 20 for molding the friction material 12a and holding the friction material powder F for a predetermined time at a predetermined pressure and temperature.

The molding apparatus 20 may include an upper molding mold 22, a lower molding mold 24, and an intermediate molding mold 26 positioned between the upper molding mold 22 and the lower molding mold 24. .

In one embodiment, the upper shaping mold 22 includes an upper shaping heating portion 22a and an upper shaping pressing portion 22b coupled to a lower end of the shaping heating portion 22a. The lower molding mold 24 may include a first lower molding pressing part 24b and an upper portion of the first lower molding pressing part 24b provided at an upper end of the lower molding heating part 24a and the lower molding heating part 24a. And a lower molding press part 24c. The intermediate molding mold 26 includes an insertion space 28 formed by penetrating the upper and lower parts.

As shown in FIG. 4A, the friction material powder F is placed in a state in which the second lower molding pressing part 24c of the lower molding mold 24 is positioned below the insertion space 28 of the intermediate molding mold 26. The back plate 14 is placed between the upper molding mold 22 and the intermediate molding mold 26 in the insertion space 28. Next, as shown in FIG. 4B, the upper molding mold 22 and the lower molding mold 24 are relatively moved in the direction of the intermediate molding mold 26 to press the friction material powder F to form the friction material 12a. do. The upper shaping heating part 22a of the upper shaping mold 22 and the lower shaping heating part 24a of the lower shaping mold 24 generate heat to apply predetermined heat to the friction material powder F so that the friction material 12a Allow to be molded. The temperature applied to the friction material powder (F) may be approximately 100 to 200 ℃. In addition, the pressure applied to the friction material powder (F) to press the upper molding mold 22 and the lower molding mold 24 toward each other may be in the range of 50 ~ 800 kgf / ㎠. The upper molding mold 22 and the lower molding mold 24 may be operated by a hydraulic piston, and are repeatedly included in the friction material powder F by repeatedly increasing or decreasing the pressure applied to the friction material powder F in the molding process S110. It is desirable to allow the air (or gas) to escape to the outside. On the other hand, the molding process (S110) as described above may be made for about 100 to 800 seconds.

When the molding process S110 is completed, the primary brake pad 10A having the friction material 12a molded and attached to the back plate 14 is completed as shown in FIG. 4C.

On the other hand, in the description with reference to FIG. 4, although the molding of the friction material 12a and the attachment of the back plate 14 are illustrated as being performed together in the molding apparatus 20, in the practice of the present invention, the friction material powder (F) is used. It is also possible to attach the molded friction material 12a to the back plate 14 after the heating and pressure molding of the friction material 12a is completed.

A quality stabilization process S120 will be described with reference to FIGS. 3 and 5.

The quality stabilization process S120 is a step of stabilizing the quality of the friction material 12a by applying a predetermined pressure and temperature to the primary brake pad 10A formed in the molding process S110. The friction material 12a formed in the molding process S110 may not be sufficiently compressed, and then the shape of the friction material 12a may be changed in a heat treatment process. In the present invention, the heat treatment step (S130) is performed after processing to the friction material 12b stabilized the characteristics of the friction material 12a through the quality stabilization process (S120).

The quality stabilization process S120 may be performed by maintaining the friction material 12a at a predetermined pressure and at a predetermined temperature for a predetermined time. At this time, it is preferable to use a device capable of transmitting pressure and heat while maintaining the shape of the friction material 12a. Quality stabilization process (S120) may be made in various ways depending on the material and properties of the friction material (12a).

Referring to FIG. 5, the quality stabilization process S120 may be performed using the quality stabilization device 30 that heats the primary brake pad 10A and pressurizes it to a predetermined pressure.

The quality stabilization device 30 may include an upper stabilization mold 32, a lower stabilization mold 34, and an intermediate stabilization mold 36 positioned between the upper stabilization mold 32 and the lower stabilization mold 34. have.

In one embodiment, the upper stabilization mold 32 includes an upper stabilization heating portion 32a and an upper stabilization pressing portion 32b coupled to a lower end of the upper stabilization heating portion 32a. The lower stabilization mold 34 includes a first lower stabilization pressing part 34b and an upper portion of the first lower stabilization pressing part 34b provided on the lower stabilization heating part 34a and the lower stabilization heating part 34a. And a lower stabilization pressing part 34c. The intermediate stabilization mold 36 includes an insertion space 38 formed through the upper and lower parts.

As shown in FIG. 5A, the primary brake pad 10A is positioned in the intermediate stabilization mold 36. Next, as shown in (b) of FIG. 5, the upper stabilization mold 32 and the lower stabilization mold 34 are relatively moved in the direction of the intermediate stabilization mold 36 to press the friction material 12a to perform a quality stabilization process. At this time, heat is transmitted to the primary brake pad 10A by the upper stabilization heating part 32a and the lower stabilization heating part 32b.

In performing the quality stabilization process (S120) in the state as shown in FIG. 5B, the temperature of the friction material 12a is 110 to 260 ° C., and the pressure applied to the friction material is applied to the friction material powder in the molding process S110. Can be 5 ~ 20% of losing pressure. For example, when the pressure applied to the friction material powder (F) in the molding process (S110) is in the range of 200 to 800 kgf / cm 2, the pressure applied to the friction material in the quality stabilization process (S120) may be 10 to 40 kgf / cm 2. have. In addition, the quality stabilization process (S120) may be performed by maintaining the conditions for 100 to 800 seconds, more preferably 400 to 700 seconds.

The friction material powder (F) is mixed, including a friction adjusting material, a reinforcing material, a binder, and the like. When the temperature of the friction material 12a is lower than 110 ° C. in the quality stabilization process (S120), the binder, usually made of resin, is not sufficiently cured. Problems may occur. In addition, when the temperature of the friction material 12a is higher than 260 ° C., a problem may occur in which the crack occurs or expands in the friction material 12a.

In performing the quality stabilization process (S120) using the quality stabilization apparatus 30 shown in FIG. 5, the upper stabilization mold 32 is heated to a temperature of 110 to 160 ° C. and the lower stabilization mold 34 is 190 to It may be heated to a temperature of 260 ℃. Accordingly, the temperature of the side farther from the back plate 14 in the friction material 12a may be higher than the side closer to the back plate 14 side. When the temperature gradient is formed as described above, it was confirmed that it is advantageous to stabilize the shape maintenance and quality of the substantial friction material 12a within a predetermined range.

On the other hand, when the pressure applied to the friction material 12a in the quality stabilization process (S120) is low (for example, less than 10 kgf / cm 2), there is no particular effect in stabilizing the shape and quality of the friction material 12a, and the pressure is high. In the case (for example, more than 40 kgf / cm 2), there may be a problem that the shape change or quality characteristics of the friction material 12a can not be managed within a predetermined range.

When the quality stabilization process is performed as shown in FIG. 5B, the secondary brake pad 10B having the stabilized friction material 12b attached to the back plate 14 as shown in FIG. 5C is completed. .

Thereafter, a heat treatment process S130 is performed.

The heat treatment step S130 is a step of curing the friction material 12b by heat-treating the brake pad 10B having stabilized material properties at a predetermined temperature through the quality stabilization step S120. The heat treatment process may be performed by adding the pressure to the oven at a predetermined temperature without applying a separate pressure to the brake pad 10B on which the quality stabilization process S120 is performed.

In the present invention, since the characteristics of the friction material 12b are stabilized through pressure and heat in the quality stabilization process S120, the heat treatment time in the heat treatment process S130 may be shorter than in the related art. Conventionally, the heat treatment time of about 4 to 12 hours is required, but in the case of the present invention, a heat treatment time shortened by 20 to 60% compared to the conventional heat treatment time may be sufficient.

In one embodiment, the temperature of the heat treatment process (S130) may be set above the temperature of the quality stabilization process. For example, if the quality stabilization process is performed at a temperature of 200 ° C the temperature of the heat treatment process (S130) may be carried out at a higher temperature (for example 300 ° C).

After the heat treatment step S130 is completed, the grinding step S140 is performed on the brake pad 10B. Grinding process (S140) may include a process of processing the edge of the friction material 12 of the brake pad 10B or forming a groove in a predetermined direction or shape on the front surface of the friction material 12.

Through this process, the brake pad 10 as shown in FIG. 2 may be manufactured. On the other hand, after the grinding process (S140) is completed after the assembly of accessories, such as necessary for mounting the vehicle on the brake pad 10 may be a final finished product.

6 is a view showing a schematic configuration of a brake pad manufacturing apparatus according to a preferred embodiment of the present invention.

The brake pad manufacturing apparatus 200 according to the present invention may include a friction material powder supply unit 210, a molding apparatus 20, a quality stabilization device 30, a heat treatment unit 220, and a grinding unit 230. .

The friction material powder supply unit 210 performs a function of mixing and supplying materials constituting the friction material powder.

The molding apparatus 20 forms the friction material 12a using the friction material powder and attaches it to the back plate 14 to manufacture the primary brake pad 10A.

The quality stabilization device 30 performs a quality stabilization process by heating and pressing the primary brake pad 10A.

The secondary brake pad 10B on which the quality stabilization process is performed in the quality stabilization device 20 is transferred to the heat treatment unit 230. The heat treatment unit 230 may be configured in the form of an oven.

The grinding part 240 grinds the friction material 12 with respect to the brake pad 10 in which the heat treatment is completed in the heat treatment part 230.

On the other hand, the brake pad manufacturing apparatus 200 according to the present invention is a friction device 12, the back plate 14 between the molding apparatus 20, the quality stabilization device 30, the heat treatment unit 220, and the grinding unit 230. Or, it may include a transfer robot 240 for transferring the brake pad 10.

The transfer robot 240 may include at least one end effector for holding the member to be transferred and a driving unit for transferring the member. The end effector may be of a pinker type or a vacuum type.

<Example>

In order to evaluate the brake pad manufacturing method according to the present invention, the characteristics of the brake padden manufactured according to the conventional method and the brake pad manufactured according to the present invention were compared.

The brake pad manufacturing method according to the conventional method (Comparative Example 1) is a state in which the brake pad 10A is loaded in the pressing jig after performing a clamping process of loading the plurality of brake pads 10A having the molding process into the pressing jig. The heat treatment was carried out at.

On the other hand, the brake pad manufacturing method (Example 1) according to the present invention was subjected to a heat treatment after performing a quality stabilization process for the brake pad (10A) after the molding process is completed. Quality stabilization process was performed using the quality stabilization device 30 as shown in Figure 4, wherein the temperature of the upper stabilization mold 32 is 150 ℃, the temperature of the lower stabilization mold 34 is 200 ℃, Pressurization pressure was 10 kgf / cm <2>.

As a result of comparing the physical properties (compression deformation, specific gravity, hardness (HRR), shear strength) of the finished friction material 12 (average value) are shown in Table 1, the results of each of the brake pad samples manufactured under the same conditions Values are as shown in FIGS. 7 and 8.

division	Tolerance	Example 1	Comparative Example 1
Compressive deformation (㎛)-room temperature, 160 bar	± 25	149	150
Longitude (HRR)	± 20	79.7	79.5
Specific gravity (g / cc)	± 0.1	2.256	2.239
Shear strength (kgf / ㎠)	MIN 30	37	35

Tolerances in Table 1 are applicant's own management criteria. Example 1 and Comparative Example 1 showed approximately similar characteristics, and the measured values for each of the prepared samples satisfied the tolerance. However, referring to FIG. 7, in Comparative Example 1, the variation in physical characteristics of the manufactured brake pad is large, but in Example 1, the variation in physical characteristics is significantly reduced.

In other words, according to the present invention, the quality characteristics of the manufactured brake pads are stabilized, thereby making it easier to manage product quality.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

<Description of the code>

10: brake pad, 12: friction material, 14: back plate, 20: molding device, 30: quality stabilizing device, 200: brake pad manufacturing device, 210: friction material powder supply part, 220: heat treatment part, 230: grinding part, 240: Transfer robot

Claims (12)

1. In the method of manufacturing a brake pad combined with a friction material and a back plate,

   A preliminary step of preparing a friction material powder and the back plate;

   Molding the powder of friction material in the form of the friction material and attaching the friction material to one surface of the back plate;

   A quality stabilization process of heating and pressurizing the friction material after the molding process is completed;

   A heat treatment step of heating the brake pad at a predetermined temperature after the quality stabilization fixing is completed; And

   A grinding step of grinding the friction material;

   Brake pad manufacturing method comprising a.
2. The method of claim 1,

   Brake pad manufacturing method characterized in that the pressurization process for the brake pad is not performed after the molding process before the quality stabilization process.
3. The method of claim 1,

   The quality stabilization process, characterized in that the brake pad is produced by heating the friction material to a temperature of 110 to 260 ℃.
4. The method of claim 3, wherein

   The quality stabilization process is a brake pad manufacturing method, characterized in that the friction material temperature on the side close to the back plate is performed in a state lower than the friction material temperature on the side far from the back plate.
5. The method of claim 4, wherein

   In the quality stabilization process, the back plate side of the brake pad is heated to a temperature of 110 to 160 ℃ and the friction material end on the opposite side of the back plate is heated to a temperature of 190 to 260 ℃.
6.  The method according to any one of claims 3 to 5,

   The quality stabilization process is a brake pad manufacturing method, characterized in that is carried out while pressing the friction material to a pressure of 5 to 20% of the pressure applied to the friction material powder in the molding process.
7. In the apparatus for manufacturing a brake pad combined with a friction material and a back plate,

   A molding apparatus for molding a friction material powder in the form of the friction material and attaching the molded friction material to the back plate;

   A quality stabilization device for heating and pressurizing the brake pads; And

   A heat treatment unit for heating the brake pad to a predetermined temperature;

   Brake pad manufacturing apparatus comprising a.
8. The method of claim 7, wherein

   The quality stabilization device includes an upper stabilization mold, a lower stabilization mold, and an intermediate stabilization mold positioned between the upper stabilization mold and the lower stabilization mold and receiving a friction material of the brake pad in a vertically penetrating accommodation space. Brake pad manufacturing device.
9. The method of claim 8,

   Each of the upper stabilizing mold and the lower stabilizing mold includes a heating unit, and the brake pad manufacturing apparatus, characterized in that for heating the friction material to a temperature of 110 to 260 ℃.
10. The method of claim 9,

    Wherein the upper stabilization mold heats the back plate to a temperature of 110 to 160 ° C., and the lower stabilization mold heats the end of the friction material to a temperature of 190 to 260 ° C.
11. The method according to claim 9 or 10,

    And the upper stabilizing mold and the lower stabilizing mold are moved relative to each other in a state where the brake pad is positioned to press the friction material at 10 to 40 kgf / cm 2.
12. The method of claim 7, wherein

    And a transfer robot configured to transfer and load the brake pads to the quality stabilization device, and to unload the brake pads from the quality stabilizer and transfer the brake pads to the heat treatment unit.

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